| 单词 | gravitational system |
| 释义 | > as lemmasgravitational system gravitational system n. (also gravitational system of unit) a system of units based on a fundamental unit of weight rather than a unit of mass. ΘΚΠ the world > the universe > cosmology > science of observation > astronomical calculation > [noun] > unit hour1777 astronomical unit1848 gravitational system1888 au1910 parsec1913 1888 Proc. Physical Soc. 10 41 To find J in the metre-kilogram-second gravitational system, when it is given in the British gravitational system. 1899 W. Watson Text-bk. Physics i. x. 85 Such a system of units is called a gravitational system, and it is this system which is almost exclusively used by engineers. 1966 G. W. C. Kaye & T. H. Laby Tables Physical & Chem. Constants (ed. 13) 6 It is convenient to distinguish the basic units of force in gravitational systems from the basic units of mass in other systems by using the symbols kgf for the kilogramme-force and lbf for the pound-force. < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。